Welcome to the North American Subaru Impreza Owners Club Wednesday May 4, 2016
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Transmission (AT/MT) & Driveline

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 09-30-2008, 06:05 PM   #1
arf80
Scooby Newbie
 
Member#: 125580
Join Date: Sep 2006
Chapter/Region: Tri-State
Location: North NJ
Vehicle:
2011 WRX 5dr
OBP

Default Is my rear diff shot?

My 02 Impreza has started making a loud "drone" coming from the rear of the car at highway speed (very similar to this thread). I had inflated my tires about a month ago, but after checking last night I was shocked to find that the front tires were lower PSI than the back, and one back tire was ~5 PSI higher than the other. After correcting the pressure, the noise remains. Is the diff shot? How much will it cost to fix, and is it safe to drive on? My commute is 100% highway driving.
* Registered users of the site do not see these ads.
arf80 is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 09-30-2008, 06:19 PM   #2
jbwrx
Scooby Specialist
 
Member#: 86274
Join Date: May 2005
Chapter/Region: MAIC
Location: Crofton, MD
Vehicle:
. Andrewtech
Gold Club Member

Default

You may also want to check the wheel bearings. Jack the rear of the car up and try to shake the wheels back and forth. If there is some play you may need to change them out.

To check if the rear diff is going, pull the lower drain plug on the diff. There is a magnet on it and generally there will be some nasty metal bits on it if the diff is going.
jbwrx is offline   Reply With Quote
Old 09-30-2008, 06:33 PM   #3
yeos
Scooby Specialist
 
Member#: 133855
Join Date: Dec 2006
Chapter/Region: NWIC
Location: Seattle
Vehicle:
2009 STi SparkSilver
Dom Tuned @ MPS

Default

Sounds like a wheel bearing.
yeos is offline   Reply With Quote
Old 09-30-2008, 08:32 PM   #4
arf80
Scooby Newbie
 
Member#: 125580
Join Date: Sep 2006
Chapter/Region: Tri-State
Location: North NJ
Vehicle:
2011 WRX 5dr
OBP

Default

Both rear wheels are super tight, no play whatsoever. I can't drain and refill the rear diff as I don't have a lift. Is a bad diff something you can drive on for a month or so, or is it in danger of seizing?
arf80 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Ok, What REALLY Is My Rear Diff Ratio? Tranny Gurus ONLY! 02CWRX Transmission (AT/MT) & Driveline 31 08-28-2012 03:45 AM
Is my rear diff shot? BKscooby Newbies & FAQs 6 01-19-2010 10:36 AM
is my rear diff done? jeraljay Transmission (AT/MT) & Driveline 6 12-18-2008 05:14 PM
Is my rear diff going south? WRX Bamboo Steamer Transmission (AT/MT) & Driveline 5 03-17-2004 05:21 PM
what gearing is my rear diff? supermoose Subaru Conversions 1 09-04-2003 05:07 PM

All times are GMT -4. The time now is 07:58 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2016 Axivo Inc.
Copyright ©1999 - 2016, North American Subaru Impreza Owners Club, Inc.